Spring.



No. 887,112. PATENTED MAYlz, 1908. M. H. NABBR.

SPRING.

APPLICATION FILED MAR. 28, 1903.

f 11? "Mi! Fllllll l I m No. 887,112. PATENTED MAY 12. 1908. M. H.NABER.

SPRING.

APPLICATION FILED MAR. 28, 1903.

2 SHEEN-SHEET 2.

THE Nam"; PETERS co., WASHINGTON. n, c.

UNITED STATES MOSES H. NABER, OF CHICAGO, ILLINOIS, ASSIGNOR TO NABERSPRING COMPANY, OF

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SPRING.

Specification of Letters Patent.

Patented May 12, 1908.

Application filed March 28, 1903. Serial No. 149,947.

T 0 all whom it may concern:

Be it known that I, MosEs H. NABER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Springs, of which thefollowing it a specification.

My invention relates to springs, and the object is to provide a springwhich brings into play the resilient and torsional efiect or power ofthe wire of which it is composed when employed between the base and bodywhich is supports.

The invention consists in the matters hereinafter described and pointedout in the appended claims.

In the accompanying drawings which form a part of thisspecification-Figure 1 is a plan view of a chair-base equipped withsprings constructed in accordance with my invention, one of the springsbeing broken away at its point of attachment to the base to showsuitable means for adjustably con necting the springs to the base; Fig.2 is an outside end view in elevation of one of the springs of Fig. 1;Figs. 3, 4 and 5 are side perspective views of springs similar to thesprings of Fig. 1 but differing therefrom in matters of detail ashereinafter described.

In the drawings, in which like letters of reference indicate the same orsimilar parts in the various views, and referring especially to Figs. 1and 2, the letter A denotes a base of any suitable construction for anydesired article, as here a chairbase, to the longitudinal parallel railsa of which the springs S are suitably attached, as by bolts a.

The springs S are preferably made of steel wire and are arranged uponthe base to receive the body of the article in any suitable manner, itbeing of course understood that these springs may be employed forchairs, couches, carriage-seats, and all structures where it is desiredto provide a spring connection between the base and body thereof.

Each spring is made of a single strand of wire formed with an upper andlower wing to and w, respectively, by which it is attached to the bodyand base of the structure, the wings being formed by bending into openform the ends of the length of wire comprising each spring and carryingthe extremities of the wire around the adjacent arms 8 and s,respectively. The wings are thus adapted to receive the bolts, the headsof which securelyclamp the wings to place when suitable nuts areapplied, it being understood that the bottom wings are bolted to thebase and the top wings to the body (not shown) of the article. bedisposed in any suitable manner, as will be hereinafter more fullydescribed. The arms 8 and s extend laterally from the wings in the samedirection but in different vertical planes, and terminate in one or morevertical coils c and 0, respectively, the coils preferably beingdisposed and arranged more or less angularly thereto, as clearly shown.in the drawings. The wire of each spring projects inwardly from thecoils toward or in the di rection of the wings in substantially parallellegs I) and b, which are in differentvertical planes from each other andalso from the arms 8 and s, and which are united by the horizontallydisposed return or U-shaped bend b The legs I) and I) lead from the bendb toward their points of development into the oppositely directed coils,so that the initial bend of the lower coils c is in a different andlower horizontal plane from the initial bend of the upper coil 0, asclearly shown in the drawings. The upper coils are lateral to or indifferent vertical planes from the lower coils by reason of thehorizontally developed bend b between the two legs respectivelyassociated with the coils, and the top wings are lateral to and insideof the vertical planes of the lower wings by reason of the same bend andthe lateral displacement caused by forming the vertical coils. Indisposing the springs as in Fig. 1 the lower wings to preferablybecomethe outer ones of each longitudinally alined pair, and the upperwings to are inner and intermediate the outer wings of their respectivepair of springs as shown in Fig. 1.

In the form shown in Fig. 3, the spring is in all particulars the sameas that shown in Figs. 1 and 2 except with respect to the Wings. In theform of Fig. 3 the wings project in opposite directions inwardly towardthe vertical plane of the return bend 6 instead of extending in the samedirection as in Fig. 1. In the form of Fig. 3 the wings are broughtpractically in alinement with each other at approximately the centralline of the spring itself. This form provides a more compact spring.

In the form shown in Fig. 4 the spring is essentially the same as thatheretofore described with the exception that the wings are The wings mayoppositely disposed and extend laterally from the arms 8 and s inopposite directions away from the central line of the spring.

In the form shown in Fig. 5 the spring is identical in all respects withthe forms heretofore described with the exception that the wings to andw are developed and extended upon each side of their respectivesupporting arms 8 and s. In this form of spring thesupporting arms aredeveloped from about the central part of the wings, instead of at oneend or the other thereof as in the previous views, whereby the singlespring may be so employed as to secure the wings to the base and body atpoints either inside or outside the central vertical line of the springas may be desired.

The action of the various springs of the several figures when strain isput upon them is such as to bring into play the resilient force oreffect of the wire at the vertical coils, and

the torsional force or effect of the wire in the arms and legs, so thatthe general action of the spring is in part vertical and in part obliqueto its central vertical plane, and the spring yields sidewise as well assimply up and down.

The base illustrated. in Fig. 1 is intended to show the relativearrangement and location of springs for an average sized parlor chair,it being understood that in case a larger or smaller chair is to beequipped, the springs will be set farther apart or nearer together, asthe case may be, in order to provide a stiffer or more yieldingstructure respec tively. For this purpose the openings in the wings toreceive the bolts may be in the form of elongated or oblongslots, sothat the springs may be adjustably set on the bolts. It is obvious thatfor effecting any desired adjustment, the passages in the frame for thebolts may be in the form of elongated slots (L or elongated slots inboth the wings and frame may be employed.

The rectangular form of wing illustrated in the drawings is preferred aswith it the securing means are not so apt to work loose by reason of thefact that it provides a broad and extended bearing which offers greatersurface to resist the torsional action of the springs.

It is obvious that various changes may be madein the form of the partswithout departing from my invention; for example, the attaching wingsmay be of any suitable shape, the connecting coil between the legs andarms may be a simple bend or one or more full turns of the wire, as alsomay be the connection between the two legs, and the shape and relationof other parts may be varied.

Having described my invention, what I claim as new and desire to secureby Letters Patent is 1. A spring composed of a single strand of verticalcoils, and a connecting portion com' prising a pair of legs in the samehorizontal plane.

2. A spring composed of a single strand of wire having an attaching wingat each end, horizontally extending parallel arms, vertical coils at theends of the arms in different planes, and an integral pair of legsprojecting from the adjacent portions of the coils and united in ahorizontally disposed bend.

3. A spring composed of a suitable length of wire, an attaching wing ateach end, an arm horizontally extending from each wing, the arms beingin different vertical planes and developed into coils at their otherends, and a U-shaped portion horizontally disposed intermediate the armsand in extension of the coils.

4. A spring composed of a single strand of wire and comprising the upperand lower attaching arms developed into vertical coils, and a U shapedportion disposed intermediate the arms and in extension of the coils.

In testimony whereof I aflix my signature in presence of two witnesses.

MOSES I-I. NABER.

Witnesses E. MOLITOR, J. McRoBERTs.

It is hereby certified that in Letters Patent No. 887,112, granted May12, 1908, upon the application of Moses H. Naber, of Chicago, Illinois,for an improvement in Springs, errors appear in the printedspecification requiring correction, as follows:

In line 7, page 1, the word it should read is; line 13, same page, theword is should read it, and line 66, same page, the reference lettershould read 0; and that the said Letters Patent should be read withthese corrections therein that the same may conform to the record of thecase in the Patent Office.

Signed and sealedthis 26th day of May, A. D., 1908.

[SEAL] E. B, MOGRE,

Commissioner of Patents.

